Quite a lot of the words mentioned on here are familiar to me and I grew up in Blackburn, so I guess they're just Lancashire words. We also said Lolly ice instead of ice lolly.
There are others that I had never heard of in my life before I moved here, like antwacky, meff and jigger. Antwacky's got to be one of the best words ever!
Oh and when someone said they were going to the baggie I had no idea what they were talking about.